Covering device for elastic strands, wire, and the like



Sept. 27, 1932. J VACHER 1,879,963

COVERING DEVICE FOR ELASTIC STRANDS, WIRE, AND THE LIKE Filed Aug. 4, 1931 2 Sheets-Sheet l 1' 23 A? 21/ a: za

i ii A E 5% I z? Ii a 4d W a; 4 45 i' I EY/WM+W Sept. 27, 1932. VACHER 1,879,963

COVERING DEVICE FOR ELASTIC STRANDS, WIRE, AND THE LIKE Filed Aug. 4, 1951 2 Sheets-Sheet 2 IIIIIIIIIIIIIII Jo 1w Meals/r Mum/rm Patented Sept. 27,- 1932 JOHN VACHER, OF WATER-BURY, CONNECT COMPANY, OF WHATERBURY, C

ICUT, VASSIGNOR TO THE AMERICAN MILLS ONNECTIGUT, A CGRPORATION COVERING- DEVICE FOR. ELASTIC STRANDS, WIRE, AND THE LIKE Application filed August 4, 1931. Serial No. 555,025. r

This invention relates to an improvement in covering devices for applying a covering to strands of various materials, that is to say, devices for helically wrapping one or more layers of covering upon strands of rubber, metal wire, etc, and relates in part1cular to the so-called flyers of suchdevices.

One of the main objects of my present invention is to providea covering or wrapping device capable of rapidly applying a covering to an elastic strand or the l1ke, w1th particular reference to producing a uniform and smooth covering.

v With the aboveand other objects in view, as will appear from the followlng, my 1nvention consists in a covering device having certain details of construction and arrangement of parts as will be hereinafter described and particularly pointed out in the claims.

In the accompanying drawings;

Fig. 1 is a view in side elevatlonof one form which a covering device embodylng my invention may assume;

Fig. 2 is a top plan view thereof;

Fig. 3 is a corresponding view but showmg the position which the flyer assumes when fabric is being drawn from the lower port1on of the co and Fig. 4 i s a perspective view of the flyer, detached but on a larger scale. r Y

The particular covering dev1ce herein chosen for the illustration of my mvention consists, as shown, of a horizontally-arranged U-shaped frame 10, adapted to be secured to any suitable support in a covering machlne and itself providing a support for a hollow spindle 11 carrying at its upper end a cop head 12 having, as shown, at its lower end an annular plate-like flange 13.

Secured to the lower end of the spindle 11 above referred to, by means of a set-screw 14, and located between the respective horizontal arms 15 and 16 of the U-shaped frame 10, is a driving-pulley 17 by means of which the spindle, and hence the cop-head 12, is rapidly rotated.

The head 12 above referred to has sleeved over it in the usual manner of covering machines a cop-tube 18 carrying the usual cop .9 of covering material, such as cotton, silk, etc. a

Mounted upon the spindle 11,,adjacent its upper end and with freedom for rotation thereon, is acollar-like flyer-hub 20, preferably formed of indurated fibre and provided in, its periphery with an annular groove 21 for the reception of the central portion of a flyer, generally designated by the numeral 22 and preferably formed of piano wire, or other equivalent resilient, filamentary material. p Q

The central portion of the flyer 22 is wrapped or looped around the hub in the groove 21 thereof, as above described, and has its respective upper arm 28 wrapped around the portion of its lower arm 24 immediately adjacent the said hub, so as to be firmly attached thereto.

The upper end of the arm is bent into helical form to provide an eye 25, while the central portion of the said arm is reversely bent to form a loop 26 to increase the resiliency thereof@ The lower arm 24 of the flyer extends horizontally outward from the hub 20 and is bent to form a loop 27 from which vertically depends 24 is helically bent'to form an eye 29 through which a single or multiple thread-30,as the case may be, extends from the cop 19, thence diagonally upward and inward through the eye of the upper arm 23 and thence around a strand 31 which is being covered.

The strand 31, to which the covering is being applied, extends vertically in. the usual manner of covering machines, through the hollow interior of the spindle 11. It will be understood that the spindle 11 is'revolved by means of its pulley 17 and hence effectsthe rotation of the cop 19 to wrap the thread the latter is being drawn upward through the hollow spindle at a predetermined rate of speed. V One of the main requirements for the effective wrapping of the covering upon a strand, as above described, is the freedom of movement of the so-called flyer. Now par- 23 of the fiyer the outer reach 28 of the said arm; The lower end of the reach 28 of the arm" 30 around the strand 31 as ticular attention is called to the fact that in my improved coveringdevice the flyer is of such shape and form that the cramping of the flyer-hub 20 upon the spindle 11 is reduced to a minimum by reason of the fact that the respective arms 23 and 24 of the fiyer extend in oppositedirections from the said hub, i. e., above and below the bearings plane thereof.

The operation of my improved flycr may be best understood if it is observed that in drawing ofi the thread 30 from the cop 19, the lower reach A of the said thread tends to draw inward upon the eye 29 and hence tends to cant the hub 20 in a clockwise direction upon the upper end of the spindle 11. This tendency, however to cant, the hub as just described is offset by thedra-ft upon the upper reach B of the thread as the latter is being wrapped around the strand 31. The draft at this latter point serves to effectively counter the draft of the lower reach A of the thread and so results in a substantial equilibrium in'which any appreciable cramping of the hub upon the spindle is avoided. I

Furthermore, by interposing the resilient loop 27 in the lower arm 24 of the flyer, the eye 29 thereof is enabled to travel vertically,- to a, limited extent, as the thread is being drawn from the upper or lower portion, respectively, of the cop 19. The vertical move-- ment of the eye 29 just referred to, while of limited extent, is sufficient to insure the uniform withdrawal of thethread from the cop, which uniform withdrawal is essential to a uniform application of the thread to the strand 31.

It will be understood by those skilled in the art that my invention may assume varied physical forms without departing inventive concept, and Ltherefore, do not limit myself to the specific embodiment herein chosen'for illustration, but only as indicated in the appended claims.

I claim: r

1. A flyer' for a device of the class described, consisting of a hub adapted to be rotatably mounted upon a spindle; a filamentary member looped around said hub and having its hub-adjacent portions interengaged to fix it to said hub, said member providing a pair of thread-guiding arms respectively extending above and below the plane of the said hub.

V 2. A flyer for adevice of the class described,consisting ofa hub adapted to be rotatably mounted upon a spindle; an inherently resilient wire looped around said hub and having its hub-adjacent portions interengaged to fix it to said hub, said member providing. a pair of resilient thread-guiding arms respectively extending above and below the plane of the said hub, each ofsaid; arms provided intermediate its ends with a from my loop whereby the inherent resiliency of the arms is enhanced.

3. A flyer for a device of the class described, consisting of a hub adapted to be rotatably mounted upon a spindle; and a pair of thread-guiding arms respectively eX- tending above and below the plane of the said hub; the arm extending below the plane of the said hub having a free end provided with thread-guiding means and formed intermediate its ends with a closed loopsubstantially overlying said free end, said loop functioning to increase the resiliency of said arm and permit limited yielding movement of its thread-guiding means in a direction substantially parallel with the axis of the said hub. I

4. A flyer for a device of the class described, consisting of a hub'adapted to be rotatably mounted upon a spindle; and a pair of thread-guiding arms each .provided with a thread-guiding eye respectively located above and below the plane of the said hub; the arm extending below the plane of the said hub being formed intermediate its ends with a closed loop substantially overlying its thread-guiding eye to increase the resiliency of said arm and permit limited yielding movement of its eye in a direction substantially parallel with the axis of the said hub.

5. A 'flyer for a device of the class de-- scribed, consisting of a hub adapted to be rotatably mounted upon a spindle; and a pair of thread-guiding arms each provided with a thread-guiding eye respectively located above and below the plane of the said hub; the arm extending below the plane of the said hub being substantially L-shaped and bent to form an intermediate closed looped portion substantially overlying its thread-guiding eye to increase its resiliency and permit limited yielding movement of its eye in a direction substantially parallel with the axis of the said hub.

In testimony whereof, I have signed this sp ecification.

' JOHN VACHER. 

